Stand-up bag of a heat-sealable plastic film for flowable products
OwnerWerner Schulzinventor
Life of this patent
Estimating the term…
Abstract
A stand-up bag of heat-sealable plastic film comprising two opposing side walls (1,2) sealed together along side seams (5, 6) and a bottom wall (4) folded inwards into V-shape and sealed to the first and the second side wall along transverse bottom seams (7,8) and along bottom side seams (9, 10). The bag further comprises a top wall (3) folded inwards into V-shape and sealed to the side wall in the same manner as the bottom wall (4). However, the top wall (3) and one of the side walls jointly form a projecting discharge spout (19) having a discharge passage (20), which is closed by a removable end portion (24) and sideways defined by spout side seams (21, 22).
Claims10
A stand-up bag of a heat-sealable plastic film for flowable products, said bag comprising:
- a first and a second opposing side wall (1,2) being interconnected along two side seams (5,6),
- a bottom wall (4) folded inwards into V-shape and having with two bottom wall panels (4a,4b) connected to the first and the second side wall, respectively, along transverse bottom connections (7,8) and along bottom side seams (34-36),
- a top wall (3) folded inwards into V-shape and having with a first top wall panel (3a) connected to the first side wall (1) and a second top wall panel (3b) connected to the second side wall (2) along top side seams (15,16), the first top wall panel (3a) further connected to the first side wall (1) along a transverse top connection (11) and the second top wall panel (3b) and the second side wall (2) further extending beyond the transverse top connection (11) and sealed together to form a discharge spout (19;39;59) having a discharge passage (20;40;60) closed by the means of a removable end portion (24, 44, 64) and sideways defined by spout side seams (21, 22;
- 41, 42;
- 61, 62), characterised in that after removal of the removable end portion (24;44;64) the discharge spout (19;39;59) has an outer width (B) of less than or equal to 50 mm at least in the spout discharge portion (27) provided by removing the removable end portion.
A bag according to one or more of the preceding claims, characterised in that the spout side seams (21, 22) extend substantially parallel to each other.
A bag according to one or more of the preceding claims, characterised in that it has an interior volume less than or equal to one litre.
A prefabricated bag for the manufacture of a bag according to one or more of the preceding claims, characterised in that one of the side seams (6) has an unsealed area (30) between the V-fold (13) of the bottom wall (4) and the V-fold (14) of the top wall (3) so as to provide an opening (33) in which a filling tube is inserted for filling the prefabricated bag.
Dependencies are inferred from the claim text.